Finding the Fourth Proportional to 163,781.76, 226,032.16 and 92,157.60
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Solution
The fourth proportional to 163,781.76, 226,032.16 and 92,157.60 is: 127,184.99
Step by Step Solution
- Step 1: Write the proportion equation
163,781.76 : 226,032.16 = 92,157.60 : x - Step 2: Convert to fraction form
163,781.76/226,032.16 = 92,157.60/x - Step 3: Cross multiply
163,781.76x = 226,032.16 × 92,157.60 - Step 4: Simplify right side
163,781.76x = 20,830,581,388.42 - Step 5: Solve for x
x = 20,830,581,388.42/163,781.76 - Step 6: Final answer
x = 127,184.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.